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//: # Introduction to CALayer | |
//: (Xcode 9 and Swift 4) | |
import UIKit | |
import PlaygroundSupport | |
//: From Apples's Support Documentation: | |
//: | |
//: > The CALayer class manages image-based content and allows you to perform animations on that content. Layers are often used to provide the backing store for views but can also be used without a view to display content. | |
//: |
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//: # CALayer Example 2 | |
import UIKit | |
import PlaygroundSupport | |
// view with white background color | |
var backgroundView = UIView(frame: CGRect(x: 0, y: 0, width: 400, height: 400)) | |
backgroundView.backgroundColor = UIColor.white | |
PlaygroundPage.current.liveView = backgroundView |
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extension String { | |
// string length | |
var len: Int { | |
return self.characters.count | |
} | |
// retrieve a single character | |
subscript(n: Int) -> Character { | |
if n < 0 || n > self.len { |
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/* EpochConverter */ | |
#include <iostream> | |
#include <time.h> | |
using namespace std; | |
int main(int argc, const char * argv[]) { | |
int inputTime; | |
struct tm *timeinfo; |
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import matplotlib.pyplot as plt | |
import numpy as np | |
# results for the greens and the cdu | |
gruene = np.array([5.3, 8.0, 7.9, 9.5, 12.1, 7.7, 11.7, 24.2, 30.3]) | |
cdu = np.array([53.4, 51.9, 49.0, 39.6, 41.3, 44.8, 44.2, 39.0, 27.0]) | |
fig, ax = plt.subplots() | |
xlabels = [1980, 1984, 1988, 1992, 1996, 2001, 2006, 2011, 2016] |
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#!/usr/bin/python3 | |
# -*- coding: utf-8 -*- | |
""" | |
Line graph of the familiy status of the citizens of Kiel, Germany. | |
The data is provided by the City of Kiel. | |
http://kiel.de/rathaus/statistik/open_data/index.php | |
familyStatus.py | |
version: 1.3 |
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#!/usr/bin/env python3 | |
# -*- coding: utf-8 -*- | |
''' | |
big-o-notation.py: | |
Version: 0.2 | |
Python 3.6 | |
Date created: 22/03/2017 | |
''' |
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